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PHP - Manual: stats_dens_weibull

2024-04-26

stats_dens_weibull

(PECL stats >= 1.0.0)

stats_dens_weibullProbability density function of the Weibull distribution

说明

stats_dens_weibull ( float $x , float $a , float $b ) : float

Returns the probability density at x, where the random variable follows the Weibull distribution of which the shape parameter is a and the scale parameter is b.

参数

x

The value at which the probability density is calculated

a

The shape parameter of the distribution

b

The scale parameter of the distribution

返回值

The probability density at x or FALSE for failure.

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官方地址:https://www.php.net/manual/en/function.stats-dens-weibull.php

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